signmessagewithprivkey

signmessagewithprivkey "privkey" "message"

Sign a message with the private key of an address

Argument #1 - privkey

Type: string, required

The private key to sign the message with.

Argument #2 - message

Type: string, required

The message to create a signature of.

Result

Name Type Description
signature string The signature of the message encoded in base 64

Examples

Create the signature:

bitcoin-cli signmessagewithprivkey "privkey" "my message"

Verify the signature:

bitcoin-cli verifymessage "1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XX" "signature" "my message"

As a JSON-RPC call:

curl --user myusername --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "signmessagewithprivkey", "params": ["privkey", "my message"] }' -H 'content-type: text/plain;' http://127.0.0.1:8332/